<template>
  <div class="login-container">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <div class="title-container">
        <h3 class="title">
          <img src="@/assets/common/login-logo.png" alt="" />
        </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="请输入手机号"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon
            :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
          />
        </span>
      </el-form-item>
      <!-- .native 给子组件的根元素，绑定原生事件 -->
      <el-button
        class="loginBtn"
        :loading="loading"
        type="primary"
        style="width: 100%; margin-bottom: 30px"
        @click.native.prevent="handleLogin"
      >
        登录
      </el-button>

      <div class="tips">
        <span style="margin-right: 20px">账号: 13800000002</span>
        <span> 密码: 123456</span>
      </div>
    </el-form>
  </div>
</template>

<script>
import { validMobile } from '@/utils/validate' // 饿了么组件的 valia 回调验证函数 封装了一个单独的
// import request from '@/utils/request'
// import NProgress from 'nprogress'
// import 'nprogress/nprogress.css'
import { mapActions } from 'vuex'
export default {
  name: 'Login',
  data() {
    const validateMobile = (rule, value, callback) => {
      if (!validMobile(value)) {
        callback(new Error('请输入正确的手机号  ')) // 这个应该是用户名错误
      } else {
        callback()
      }
    }
    // const validatePassword = (rule, value, callback) => {
    //   if (!validPassword(value)) {
    //     callback(new Error('密码错误')) // 这个是密码错误
    //   } else {
    //     callback()
    //   }
    // }
    return {
      loginForm: {
        // 预定义 账号密码 方便 测试
        mobile: '13800000002',
        password: '123456'
      },
      loginRules: {
        mobile: [
          { required: true, trigger: 'blur', message: '用户名不能为空' },
          {
            trigger: 'blur',
            validator: validateMobile // 验证用户名是否正确的函数
          },
          {
            pattern: /^1[3-9]\d{9}$/,
            message: '请输入正确的手机号',
            trigger: ['change', 'blur']
          }
        ],
        password: [
          { required: true, trigger: 'blur', message: '密码不能为空' },
          // {
          //   trigger: 'blur',
          //   validator: validatePassword // 验证密码是否正确的函数
          // },
          {
            min: 6,
            max: 16,
            message: '密码应为6-16位的长度',
            trigger: ['change', 'blur'] // 改变的时候触发
          }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    // 重定向 具体干啥不知道
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    ...mapActions('user', ['getToken']),
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    // 登录验证
    handleLogin() {
      // 登陆的时候调用vaildate方法  判断返回的是否成功
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          // this['user/getToken'](this.loginForm)
          this.loading = true
          // NProgress.start()
          this.getToken(this.loginForm) // 调用gettoken 得到一个 返回值promise的对象 根据这个对象是成功的对象还是失败的对象 来进行下一步的操作

            .then(() => {
              this.$router.push('/')
              // this.loading = false
            })
            .catch(() => {
              // 失败结果
              // this.loading = false
            }) // 无论成功或者失败都会进入finally方法
            .finally(() => {
              this.loading = false
              // NProgress.done()
            })
          // request({
          //   url: '/sys/login',
          //   method: 'post',
          //   data: this.loginForm
          // })
          // this.loading = true
          // this.$store
          //   .dispatch('user/login', this.loginForm)
          //   .then(() => {
          //     this.$router.push({ path: this.redirect || '/' })
          //     this.loading = false
          //   })
          //   .catch(() => {
          //     this.loading = false
          //   })
        } else {
          console.log(`表单里未满足条件的字段：${JSON.stringify(valid)}`)
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;
$light_gray: #68b0fe;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
    background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
    background-position: center; // 将图片位置设置为充满整个屏幕
  }
}
.loginBtn {
  background: #407ffe;
  height: 64px;
  line-height: 32px;
  font-size: 24px;
}
/* reset element-ui css */
.login-container {
  background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      $light_gray: #68b0fe;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.7); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }
  .el-form-item__error {
    color: #fff;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
